--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tests/auto/qtabwidget/tst_qtabwidget.cpp	Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,626 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the test suite of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights.  These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+
+#include <QtTest/QtTest>
+#include <qtabwidget.h>
+#include <qdebug.h>
+#include <qapplication.h>
+#include <qlabel.h>
+
+//TESTED_CLASS=
+//TESTED_FILES=
+
+#if defined(Q_OS_WIN) && !defined(Q_OS_WINCE)
+#  include <qt_windows.h>
+#define Q_CHECK_PAINTEVENTS \
+    if (::SwitchDesktop(::GetThreadDesktop(::GetCurrentThreadId())) == 0) \
+        QSKIP("desktop is not visible, this test would fail", SkipSingle);
+#else
+#define Q_CHECK_PAINTEVENTS
+#endif
+#if defined(Q_WS_X11)
+#  include <private/qt_x11_p.h>
+#  include <qx11info_x11.h>
+#elif defined(Q_WS_QWS)
+# include <qwindowsystem_qws.h>
+#endif
+
+#ifndef Q_CHECK_PAINTEVENTS
+#define Q_CHECK_PAINTEVENTS
+#endif //Q_CHECK_PAINTEVENTS
+
+
+class QTabWidgetChild:public QTabWidget {
+  public:
+    QTabWidgetChild():tabCount(0) {
+        QVERIFY(tabBar() != NULL);
+        QWidget *w = new QWidget;
+        int index = addTab(w, "test");
+          QCOMPARE(tabCount, 1);
+          removeTab(index);
+          QCOMPARE(tabCount, 0);
+
+          // Test bad arguments
+          // This will assert, so don't do it :)
+          //setTabBar(NULL);
+    };
+
+  protected:
+    virtual void tabInserted(int /*index */ ) {
+        tabCount++;
+    };
+    virtual void tabRemoved(int /*index */ ) {
+        tabCount--;
+    };
+    int tabCount;
+};
+
+class tst_QTabWidget:public QObject {
+  Q_OBJECT
+  public:
+    tst_QTabWidget();
+
+  public slots:
+    void init();
+    void cleanup();
+  private slots:
+    void getSetCheck();
+    void testChild();
+    void addRemoveTab();
+    void tabPosition();
+    void tabEnabled();
+    void tabText();
+    void tabShape();
+    void tabTooltip();
+    void tabIcon();
+    void indexOf();
+    void currentWidget();
+    void currentIndex();
+    void cornerWidget();
+    void removeTab();
+    void clear();
+    void keyboardNavigation();
+    void paintEventCount();
+
+  private:
+    int addPage();
+    void removePage(int index);
+    QTabWidget *tw;
+};
+
+// Testing get/set functions
+void tst_QTabWidget::getSetCheck()
+{
+    QTabWidget obj1;
+    QWidget *w1 = new QWidget;
+    QWidget *w2 = new QWidget;
+    QWidget *w3 = new QWidget;
+    QWidget *w4 = new QWidget;
+    QWidget *w5 = new QWidget;
+
+    obj1.addTab(w1, "Page 1");
+    obj1.addTab(w2, "Page 2");
+    obj1.addTab(w3, "Page 3");
+    obj1.addTab(w4, "Page 4");
+    obj1.addTab(w5, "Page 5");
+
+    // TabShape QTabWidget::tabShape()
+    // void QTabWidget::setTabShape(TabShape)
+    obj1.setTabShape(QTabWidget::TabShape(QTabWidget::Rounded));
+    QCOMPARE(QTabWidget::TabShape(QTabWidget::Rounded), obj1.tabShape());
+    obj1.setTabShape(QTabWidget::TabShape(QTabWidget::Triangular));
+    QCOMPARE(QTabWidget::TabShape(QTabWidget::Triangular), obj1.tabShape());
+
+    // int QTabWidget::currentIndex()
+    // void QTabWidget::setCurrentIndex(int)
+    obj1.setCurrentIndex(0);
+    QCOMPARE(0, obj1.currentIndex());
+    obj1.setCurrentIndex(INT_MIN);
+    QCOMPARE(0, obj1.currentIndex());
+    obj1.setCurrentIndex(INT_MAX);
+    QCOMPARE(0, obj1.currentIndex());
+    obj1.setCurrentIndex(4);
+    QCOMPARE(4, obj1.currentIndex());
+
+    // QWidget * QTabWidget::currentWidget()
+    // void QTabWidget::setCurrentWidget(QWidget *)
+    obj1.setCurrentWidget(w1);
+    QCOMPARE(w1, obj1.currentWidget());
+    obj1.setCurrentWidget(w5);
+    QCOMPARE(w5, obj1.currentWidget());
+    obj1.setCurrentWidget((QWidget *)0);
+    QCOMPARE(w5, obj1.currentWidget()); // current not changed
+}
+
+tst_QTabWidget::tst_QTabWidget()
+{
+}
+
+void tst_QTabWidget::init()
+{
+    tw = new QTabWidget(0);
+    QCOMPARE(tw->count(), 0);
+    QCOMPARE(tw->currentIndex(), -1);
+    QVERIFY(tw->currentWidget() == NULL);
+}
+
+void tst_QTabWidget::cleanup()
+{
+    delete tw;
+    tw = 0;
+}
+
+void tst_QTabWidget::testChild()
+{
+    QTabWidgetChild t;
+}
+
+#define LABEL "TEST"
+#define TIP "TIP"
+int tst_QTabWidget::addPage()
+{
+    QWidget *w = new QWidget();
+    return tw->addTab(w, LABEL);
+}
+
+void tst_QTabWidget::removePage(int index)
+{
+    QWidget *w = tw->widget(index);
+    tw->removeTab(index);
+    delete w;
+}
+
+/**
+ * Tests:
+ * addTab(...) which really calls -> insertTab(...)
+ * widget(...)
+ * removeTab(...);
+ * If this fails then many others probably will too.
+ */
+void tst_QTabWidget::addRemoveTab()
+{
+    // Test bad arguments
+    tw->addTab(NULL, LABEL);
+    QCOMPARE(tw->count(), 0);
+    tw->removeTab(-1);
+    QCOMPARE(tw->count(), 0);
+    QVERIFY(tw->widget(-1) == 0);
+
+    QWidget *w = new QWidget();
+    int index = tw->addTab(w, LABEL);
+    // return value
+    QCOMPARE(tw->indexOf(w), index);
+
+    QCOMPARE(tw->count(), 1);
+    QVERIFY(tw->widget(index) == w);
+    QCOMPARE(tw->tabText(index), QString(LABEL));
+
+    removePage(index);
+    QCOMPARE(tw->count(), 0);
+}
+
+void tst_QTabWidget::tabPosition()
+{
+    tw->setTabPosition(QTabWidget::North);
+    QCOMPARE(tw->tabPosition(), QTabWidget::North);
+    tw->setTabPosition(QTabWidget::South);
+    QCOMPARE(tw->tabPosition(), QTabWidget::South);
+    tw->setTabPosition(QTabWidget::East);
+    QCOMPARE(tw->tabPosition(), QTabWidget::East);
+    tw->setTabPosition(QTabWidget::West);
+    QCOMPARE(tw->tabPosition(), QTabWidget::West);
+}
+
+void tst_QTabWidget::tabEnabled()
+{
+    // Test bad arguments
+    QVERIFY(tw->isTabEnabled(-1) == false);
+    tw->setTabEnabled(-1, false);
+
+    int index = addPage();
+
+    tw->setTabEnabled(index, true);
+    QVERIFY(tw->isTabEnabled(index) == true);
+    tw->setTabEnabled(index, false);
+    QVERIFY(tw->isTabEnabled(index) == false);
+    tw->setTabEnabled(index, true);
+    QVERIFY(tw->isTabEnabled(index) == true);
+
+    removePage(index);
+}
+
+void tst_QTabWidget::tabText()
+{
+    // Test bad arguments
+    QCOMPARE(tw->tabText(-1), QString(""));
+    tw->setTabText(-1, LABEL);
+
+    int index = addPage();
+
+    tw->setTabText(index, "new");
+    QCOMPARE(tw->tabText(index), QString("new"));
+    tw->setTabText(index, LABEL);
+    QCOMPARE(tw->tabText(index), QString(LABEL));
+
+    removePage(index);
+}
+
+void tst_QTabWidget::tabShape()
+{
+    int index = addPage();
+
+    tw->setTabShape(QTabWidget::Rounded);
+    QCOMPARE(tw->tabShape(), QTabWidget::Rounded);
+    tw->setTabShape(QTabWidget::Triangular);
+    QCOMPARE(tw->tabShape(), QTabWidget::Triangular);
+    tw->setTabShape(QTabWidget::Rounded);
+    QCOMPARE(tw->tabShape(), QTabWidget::Rounded);
+
+    removePage(index);
+}
+
+void tst_QTabWidget::tabTooltip()
+{
+    // Test bad arguments
+    QCOMPARE(tw->tabToolTip(-1), QString(""));
+    tw->setTabText(-1, TIP);
+
+    int index = addPage();
+
+    tw->setTabToolTip(index, "tip");
+    QCOMPARE(tw->tabToolTip(index), QString("tip"));
+    tw->setTabToolTip(index, TIP);
+    QCOMPARE(tw->tabToolTip(index), QString(TIP));
+
+    removePage(index);
+}
+
+void tst_QTabWidget::tabIcon()
+{
+    // Test bad arguments
+    QVERIFY(tw->tabToolTip(-1).isNull());
+    tw->setTabIcon(-1, QIcon());
+
+    int index = addPage();
+
+    QIcon icon;
+    tw->setTabIcon(index, icon);
+    QVERIFY(tw->tabIcon(index).isNull());
+
+    removePage(index);
+}
+
+void tst_QTabWidget::indexOf()
+{
+    // Test bad arguments
+    QCOMPARE(tw->indexOf(NULL), -1);
+
+    int index = addPage();
+    QWidget *w = tw->widget(index);
+    QCOMPARE(tw->indexOf(w), index);
+
+    removePage(index);
+}
+
+void tst_QTabWidget::currentWidget()
+{
+    // Test bad arguments
+    tw->setCurrentWidget(NULL);
+    QVERIFY(tw->currentWidget() == NULL);
+
+    int index = addPage();
+    QWidget *w = tw->widget(index);
+    QVERIFY(tw->currentWidget() == w);
+    QCOMPARE(tw->currentIndex(), index);
+
+    tw->setCurrentWidget(NULL);
+    QVERIFY(tw->currentWidget() == w);
+    QCOMPARE(tw->currentIndex(), index);
+
+    int index2 = addPage();
+    QWidget *w2 = tw->widget(index2);
+    Q_UNUSED(w2);
+    QVERIFY(tw->currentWidget() == w);
+    QCOMPARE(tw->currentIndex(), index);
+
+    removePage(index2);
+    removePage(index);
+}
+
+/**
+ * setCurrentWidget(..) calls setCurrentIndex(..)
+ * currentChanged(..) SIGNAL
+ */
+void tst_QTabWidget::currentIndex()
+{
+    // Test bad arguments
+    QSignalSpy spy(tw, SIGNAL(currentChanged(int)));
+#ifdef QT3_SUPPORT
+    QSignalSpy spySupport(tw, SIGNAL(currentChanged(QWidget *)));
+#endif
+    QCOMPARE(tw->currentIndex(), -1);
+    tw->setCurrentIndex(-1);
+    QCOMPARE(tw->currentIndex(), -1);
+    QCOMPARE(spy.count(), 0);
+
+    int firstIndex = addPage();
+    tw->setCurrentIndex(firstIndex);
+    QCOMPARE(tw->currentIndex(), firstIndex);
+    QCOMPARE(spy.count(), 1);
+    QList<QVariant> arguments = spy.takeFirst();
+    QVERIFY(arguments.at(0).toInt() == firstIndex);
+#ifdef QT3_SUPPORT
+    QCOMPARE(spySupport.count(), 1);
+#endif
+    
+    int index = addPage();
+    QCOMPARE(tw->currentIndex(), firstIndex);
+    tw->setCurrentIndex(index);
+    QCOMPARE(tw->currentIndex(), index);
+    QCOMPARE(spy.count(), 1);
+    arguments = spy.takeFirst();
+    QVERIFY(arguments.at(0).toInt() == index);
+#ifdef QT3_SUPPORT
+    QCOMPARE(spySupport.count(), 2);
+#endif
+    
+    removePage(index);
+    QCOMPARE(tw->currentIndex(), firstIndex);
+    QCOMPARE(spy.count(), 1);
+    arguments = spy.takeFirst();
+    QVERIFY(arguments.at(0).toInt() == firstIndex);
+#ifdef QT3_SUPPORT
+    QCOMPARE(spySupport.count(), 3);
+#endif
+
+    removePage(firstIndex);
+    QCOMPARE(tw->currentIndex(), -1);
+    QCOMPARE(spy.count(), 1);
+    arguments = spy.takeFirst();
+    QVERIFY(arguments.at(0).toInt() == -1);
+#ifdef QT3_SUPPORT
+    QCOMPARE(spySupport.count(), 4);
+#endif
+
+}
+
+void tst_QTabWidget::cornerWidget()
+{
+    // Test bad arguments
+    tw->setCornerWidget(NULL, Qt::TopRightCorner);
+
+    QVERIFY(tw->cornerWidget(Qt::TopLeftCorner) == 0);
+    QVERIFY(tw->cornerWidget(Qt::TopRightCorner) == 0);
+    QVERIFY(tw->cornerWidget(Qt::BottomLeftCorner) == 0);
+    QVERIFY(tw->cornerWidget(Qt::BottomRightCorner) == 0);
+
+    QWidget *w = new QWidget(0);
+    tw->setCornerWidget(w, Qt::TopLeftCorner);
+    QCOMPARE(w->parent(), (QObject *)tw);
+    QVERIFY(tw->cornerWidget(Qt::TopLeftCorner) == w);
+    tw->setCornerWidget(w, Qt::TopRightCorner);
+    QVERIFY(tw->cornerWidget(Qt::TopRightCorner) == w);
+    tw->setCornerWidget(w, Qt::BottomLeftCorner);
+    QVERIFY(tw->cornerWidget(Qt::BottomLeftCorner) == w);
+    tw->setCornerWidget(w, Qt::BottomRightCorner);
+    QVERIFY(tw->cornerWidget(Qt::BottomRightCorner) == w);
+
+    tw->setCornerWidget(0, Qt::TopRightCorner);
+    QVERIFY(tw->cornerWidget(Qt::TopRightCorner) == 0);
+    QCOMPARE(w->isHidden(), true);
+}
+
+//test that the QTabWidget::count() is correct at the moment the currentChanged signal is emit
+class RemoveTabObject : public QObject
+{
+    Q_OBJECT
+    public:
+        RemoveTabObject(QTabWidget *_tw) : tw(_tw), count(-1) {
+            connect(tw, SIGNAL(currentChanged(int)), this, SLOT(currentChanged()));
+        }
+
+        QTabWidget *tw;
+        int count;
+    public slots:
+        void currentChanged() { count = tw->count(); }
+};
+
+void tst_QTabWidget::removeTab()
+{
+    tw->show();
+    QCOMPARE(tw->count(), 0);
+    RemoveTabObject ob(tw);
+    tw->addTab(new QLabel("1"), "1");
+    QCOMPARE(ob.count, 1);
+    tw->addTab(new QLabel("2"), "2");
+    tw->addTab(new QLabel("3"), "3");
+    tw->addTab(new QLabel("4"), "4");
+    tw->addTab(new QLabel("5"), "5");
+    QCOMPARE(ob.count, 1);
+    QCOMPARE(tw->count(), 5);
+    
+    tw->setCurrentIndex(4);
+    QCOMPARE(ob.count,5);
+    tw->removeTab(4);
+    QCOMPARE(ob.count, 4);
+    QCOMPARE(tw->count(), 4);
+    QCOMPARE(tw->currentIndex(), 3);
+
+    tw->setCurrentIndex(1);
+    tw->removeTab(1);
+    QCOMPARE(ob.count, 3);
+    QCOMPARE(tw->count(), 3);
+    QCOMPARE(tw->currentIndex(), 1);
+
+    delete tw->widget(1);
+    QCOMPARE(tw->count(), 2);
+    QCOMPARE(ob.count, 2);
+    QCOMPARE(tw->currentIndex(), 1);
+    delete tw->widget(1);
+    QCOMPARE(tw->count(), 1);
+    QCOMPARE(ob.count, 1);
+    tw->removeTab(0);
+    QCOMPARE(tw->count(), 0);
+    QCOMPARE(ob.count, 0);
+}
+
+void tst_QTabWidget::clear()
+{
+    tw->addTab(new QWidget, "1");
+    tw->addTab(new QWidget, "2");
+    tw->addTab(new QWidget, "3");
+    tw->addTab(new QWidget, "4");
+    tw->addTab(new QWidget, "5");
+    tw->setCurrentIndex(4);
+    tw->clear();
+    QCOMPARE(tw->count(), 0);
+    QCOMPARE(tw->currentIndex(), -1);
+}
+
+void tst_QTabWidget::keyboardNavigation()
+{
+    int firstIndex = addPage();
+    addPage();
+    addPage();
+    tw->setCurrentIndex(firstIndex);
+    QCOMPARE(tw->currentIndex(), firstIndex);
+
+    QTest::keyClick(tw, Qt::Key_Tab, Qt::ControlModifier);
+    QCOMPARE(tw->currentIndex(), 1);
+    QTest::keyClick(tw, Qt::Key_Tab, Qt::ControlModifier);
+    QCOMPARE(tw->currentIndex(), 2);
+    QTest::keyClick(tw, Qt::Key_Tab, Qt::ControlModifier);
+    QCOMPARE(tw->currentIndex(), 0);
+    tw->setTabEnabled(1, false);
+    QTest::keyClick(tw, Qt::Key_Tab, Qt::ControlModifier);
+    QCOMPARE(tw->currentIndex(), 2);
+
+    QTest::keyClick(tw, Qt::Key_Tab, Qt::ControlModifier | Qt::ShiftModifier);
+    QCOMPARE(tw->currentIndex(), 0);
+    QTest::keyClick(tw, Qt::Key_Tab, Qt::ControlModifier | Qt::ShiftModifier);
+    QCOMPARE(tw->currentIndex(), 2);
+    tw->setTabEnabled(1, true);
+    QTest::keyClick(tw, Qt::Key_Tab, Qt::ControlModifier | Qt::ShiftModifier);
+    QCOMPARE(tw->currentIndex(), 1);
+    QTest::keyClick(tw, Qt::Key_Tab, Qt::ControlModifier | Qt::ShiftModifier);
+    QCOMPARE(tw->currentIndex(), 0);
+    QTest::keyClick(tw, Qt::Key_Tab, Qt::ControlModifier | Qt::ShiftModifier);
+    QCOMPARE(tw->currentIndex(), 2);
+    QTest::keyClick(tw, Qt::Key_Tab, Qt::ControlModifier);
+    QCOMPARE(tw->currentIndex(), 0);
+
+    // Disable all and try to go to the next. It should not move anywhere, and more importantly
+    // it should not loop forever. (a naive "search for the first enabled tabbar") implementation
+    // might do that)
+    tw->setTabEnabled(0, false);
+    tw->setTabEnabled(1, false);
+    tw->setTabEnabled(2, false);
+    QTest::keyClick(tw, Qt::Key_Tab, Qt::ControlModifier);
+    // TODO: Disabling the current tab will move current tab to the next,
+    // but what if next tab is also disabled. We should look into this. 
+    QVERIFY(tw->currentIndex() < 3 && tw->currentIndex() >= 0);
+}
+
+class PaintCounter : public QWidget
+{
+public:
+    PaintCounter() :count(0) { setAttribute(Qt::WA_OpaquePaintEvent); }
+    int count;
+protected:
+    void paintEvent(QPaintEvent*) {
+        ++count;
+    }
+};
+
+
+void tst_QTabWidget::paintEventCount()
+{
+    Q_CHECK_PAINTEVENTS
+
+    PaintCounter *tab1 = new PaintCounter;
+    PaintCounter *tab2 = new PaintCounter;
+
+    tw->addTab(tab1, "one");
+    tw->addTab(tab2, "two");
+
+    QCOMPARE(tab1->count, 0);
+    QCOMPARE(tab2->count, 0);
+    QCOMPARE(tw->currentIndex(), 0);
+
+    tw->show();
+
+    QTest::qWait(1000);
+
+    // Mac, Windows and Windows CE get multiple repaints on the first show, so use those as a starting point.
+    static const int MaxInitialPaintCount =
+#if defined(Q_OS_WINCE)
+        4;
+#elif defined(Q_WS_WIN)
+        2;
+#elif defined(Q_WS_MAC)
+        5;
+#else
+        2;
+#endif
+    QVERIFY(tab1->count <= MaxInitialPaintCount);
+    QCOMPARE(tab2->count, 0);
+
+    const int initalPaintCount = tab1->count;
+
+    tw->setCurrentIndex(1);
+
+    QTest::qWait(100);
+
+    QCOMPARE(tab1->count, initalPaintCount);
+    QCOMPARE(tab2->count, 1);
+
+    tw->setCurrentIndex(0);
+
+    QTest::qWait(100);
+
+    QCOMPARE(tab1->count, initalPaintCount + 1);
+    QCOMPARE(tab2->count, 1);
+}
+
+
+QTEST_MAIN(tst_QTabWidget)
+#include "tst_qtabwidget.moc"